Formula Review and Improvement for Melasma, Wrinkles, and Dull Oily Skin

Question

I have developed a formula aimed at addressing melasma, freckles, wrinkles, and dullness on oily to slightly combination skin. I would like to request a review of the following aspects and welcome any suggestions for improvement:

Ingredient Compatibility: Are the ingredients in my formula compatible?
Mixing Procedure: Is my mixing procedure correct?
pH Level: What is the expected final pH, and is adjusting it necessary for this formula?

Additionally, please provide suggestions for enhancing the formula's effectiveness, particularly for reducing melasma and improving skin brightening.

MySkinRecipes Expert · Accepted Answer

Based on the formula you provided for reducing melasma, freckles, wrinkles, and dullness on oily skin, and the staff's review: Ingredient Compatibility: The ingredients in your formula are compatible. Mixing Procedure: Your mixing steps are correct. The staff added a tip: when combining phase A and B, slowly add phase B into phase A while stirring continuously. This helps the mixture emulsify more easily than adding all of B at once. pH Level: The final pH of the formula will be approximately neutral. According to the staff, it is not necessary to adjust the pH to 4.5-5.5 for this formula. Formula Modification: For enhanced results in reducing melasma and brightening the skin, the staff suggested adding Safe-B3 (Niacinamide) at 5% to your formula.